diff options
Diffstat (limited to 'elf/dl-init.c')
| -rw-r--r-- | elf/dl-init.c | 120 |
1 files changed, 65 insertions, 55 deletions
diff --git a/elf/dl-init.c b/elf/dl-init.c index 627f823..82e5737 100644 --- a/elf/dl-init.c +++ b/elf/dl-init.c @@ -1,5 +1,5 @@ /* Return the next shared object initializer function not yet run. - Copyright (C) 1995, 1996, 1998, 1999, 2000 Free Software Foundation, Inc. + Copyright (C) 1995,1996,1998,1999,2000,2001 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -27,6 +27,63 @@ typedef void (*init_t) (int, char **, char **); /* Flag, nonzero during startup phase. */ extern int _dl_starting_up; +/* The object to be initialized first. */ +extern struct link_map *_dl_initfirst; + + +static void +call_init (struct link_map *l, int argc, char **argv, char **env) +{ + if (l->l_init_called) + /* This object is all done. */ + return; + + /* Avoid handling this constructor again in case we have a circular + dependency. */ + l->l_init_called = 1; + + /* Check for object which constructors we do not run here. */ + if (l->l_name[0] == '\0' && l->l_type == lt_executable) + return; + + /* Are there any constructors? */ + if (l->l_info[DT_INIT] == NULL && l->l_info[DT_INIT_ARRAY] == NULL) + return; + + /* Print a debug message if wanted. */ + if (__builtin_expect (_dl_debug_impcalls, 0)) + _dl_debug_message (1, "\ncalling init: ", + l->l_name[0] ? l->l_name : _dl_argv[0], "\n\n", NULL); + + /* Now run the local constructors. There are two forms of them: + - the one named by DT_INIT + - the others in the DT_INIT_ARRAY. + */ + if (l->l_info[DT_INIT] != NULL) + { + init_t init = (init_t) DL_DT_INIT_ADDRESS + (l, l->l_addr + l->l_info[DT_INIT]->d_un.d_ptr); + + /* Call the function. */ + init (argc, argv, env); + } + + /* Next see whether there is an array with initialization functions. */ + if (l->l_info[DT_INIT_ARRAY] != NULL) + { + unsigned int j; + unsigned int jm; + ElfW(Addr) *addrs; + + jm = l->l_info[DT_INIT_ARRAYSZ]->d_un.d_val / sizeof (ElfW(Addr)); + + addrs = (ElfW(Addr) *) (l->l_info[DT_INIT_ARRAY]->d_un.d_ptr + + l->l_addr); + for (j = 0; j < jm; ++j) + ((init_t) addrs[j]) (argc, argv, env); + } +} + void internal_function @@ -36,6 +93,12 @@ _dl_init (struct link_map *main_map, int argc, char **argv, char **env) struct r_debug *r; unsigned int i; + if (_dl_initfirst != NULL) + { + call_init (_dl_initfirst, argc, argv, env); + _dl_initfirst = NULL; + } + /* Don't do anything if there is no preinit array. */ if (preinit_array != NULL && (i = preinit_array->d_un.d_val / sizeof (ElfW(Addr))) > 0) @@ -73,60 +136,7 @@ _dl_init (struct link_map *main_map, int argc, char **argv, char **env) i = main_map->l_searchlist.r_nlist; while (i-- > 0) - { - struct link_map *l = main_map->l_initfini[i]; - init_t init; - - if (l->l_init_called) - /* This object is all done. */ - continue; - - /* Avoid handling this constructor again in case we have a circular - dependency. */ - l->l_init_called = 1; - - /* Check for object which constructors we do not run here. */ - if (l->l_name[0] == '\0' && l->l_type == lt_executable) - continue; - - /* Are there any constructors? */ - if (l->l_info[DT_INIT] == NULL && l->l_info[DT_INIT_ARRAY] == NULL) - continue; - - /* Print a debug message if wanted. */ - if (__builtin_expect (_dl_debug_impcalls, 0)) - _dl_debug_message (1, "\ncalling init: ", - l->l_name[0] ? l->l_name : _dl_argv[0], - "\n\n", NULL); - - /* Now run the local constructors. There are two forms of them: - - the one named by DT_INIT - - the others in the DT_INIT_ARRAY. - */ - if (l->l_info[DT_INIT] != NULL) - { - init = (init_t) DL_DT_INIT_ADDRESS - (l, l->l_addr + l->l_info[DT_INIT]->d_un.d_ptr); - - /* Call the function. */ - init (argc, argv, env); - } - - /* Next see whether there is an array with initialization functions. */ - if (l->l_info[DT_INIT_ARRAY] != NULL) - { - unsigned int j; - unsigned int jm; - ElfW(Addr) *addrs; - - jm = l->l_info[DT_INIT_ARRAYSZ]->d_un.d_val / sizeof (ElfW(Addr)); - - addrs = (ElfW(Addr) *) (l->l_info[DT_INIT_ARRAY]->d_un.d_ptr - + l->l_addr); - for (j = 0; j < jm; ++j) - ((init_t) addrs[j]) (argc, argv, env); - } - } + call_init (main_map->l_initfini[i], argc, argv, env); /* Notify the debugger all new objects are now ready to go. */ r->r_state = RT_CONSISTENT; |